package com.zeng.springboot03web.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpSession;


@Controller
public class LoginController {
    @RequestMapping("user/login")
    public String login(
            @RequestParam("username") String username,
            @RequestParam("password") String password,
            Model model, HttpSession session) {
        //如果用户名和密码正确
        if (!username.isEmpty() && "123456".equals(password)) {
            session.setAttribute("LoginUser", username);
            return "redirect:/main.html"; //重定向到main.html页面,也就是跳转到dashboard页面
        } else {
            //如果用户名或者密码不正确
            //显示错误信息
            model.addAttribute("msg", "用户名或密码错误");
            //跳转到首页
            return "index";
        }
    }
    // 注销
    @RequestMapping("/user/logout")
    public String logout(HttpSession session) {
        session.invalidate();
        return "redirect:/index.html";
    }
}
